import book.BookList;
import user.AdminUser;
import user.NormalUser;
import user.User;

import java.util.Scanner;

public class Main {

    public static User log(){
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入您的姓名：");
        String name = scanner.nextLine();
        System.out.println("请确认您的身份：1.管理员 2.普通用户");
        int choice = scanner.nextInt();
        if (choice == 1){
            return new AdminUser(name);
        }
        else {
            return new NormalUser(name);
        }
    }
    public static void main(String[] args) {
            BookList bookList = new BookList();
            User user = log();//向上转型
            while (true){
            int choice = user.menu();//动态绑定。
            user.doWork(choice, bookList);
        }
    }
}
